http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60181
--- Comment #3 from Andreas Krebbel <krebbel at gcc dot gnu.org> --- I'll keep the bugreport open with low prio. If I find the time I will at least try to understand what's going on before closing it. The testcase is extracted from gcc/testsuite/go.test/test/ken/cplx2.go which fails due to this problem currently on s390.